Alert archive / Arkansas / Flash Flood Warnings in 2012

Flash Flood Warning 37, NWS Tulsa, OK

August 16, 2012Franklin County, Madison County, Arkansas

NWS Tulsa, OK issued this flash flood warning at Aug 16, 2012, 9:29 PM CDT for Franklin County, Madison County, Arkansas. It was in force for 97 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 16, 2012, 9:29 PM CDT (02:29 UTC)
Expired
Aug 16, 2012, 11:06 PM CDT
In force
97 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

Counties Franklin County, AR, Madison County, AR

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.5 hours before the alert went out and 127 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2012-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 286 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2012-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 square meters per square second.193958Sfc1 km3 km6 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
286 J/kg
Mixed-layer CIN
-168 J/kg
Mixed-layer LCL
1248 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

705 
WGUS54 KTSA 170229
FFWTSA
ARC047-087-170430-
/O.NEW.KTSA.FF.W.0037.120817T0229Z-120817T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
929 PM CDT THU AUG 16 2012

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS...
  SOUTHERN MADISON COUNTY IN NORTHWEST ARKANSAS...

* UNTIL 1130 PM CDT

* AT 928 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH VERY HEAVY RAIN OVER THE WARNED AREA. 3 TO 4    
  INCHES OF RAINFALL HAS ALREADY OCCURRED WITH AN ADDITIONAL INCH    
  POSSIBLE. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING INCLUDE...
  BOSTON...CASS...PETTIGREW AND SAINT PAUL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD TO
UNKNOWN DEPTHS. IT ONLY TAKES TWO FEET OF RUSHING WATER TO CARRY AWAY
MOST SPORT UTILITY VEHICLES AND PICKUPS. TAKE A DIFFERENT ROUTE TO
REACH YOUR DESTINATION OR WAIT UNTIL THE WATER RECEDES. REMEMBER...
MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES.

&&

LAT...LON 3576 9352 3576 9369 3567 9369 3568 9398
      3569 9399 3571 9396 3573 9396 3573 9392
      3575 9389 3576 9396 3594 9395 3593 9350

$$
1 follow-up statement
982 
WGUS74 KTSA 170406
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1106 PM CDT THU AUG 16 2012

ARC047-087-170419-
/O.CAN.KTSA.FF.W.0037.000000T0000Z-120817T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRANKLIN AR-MADISON AR-
1106 PM CDT THU AUG 16 2012

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHERN MADISON
AND NORTHEASTERN FRANKLIN COUNTIES IS CANCELLED...

RAIN HAS ENDED OVER THE WARNED AREA. STREAMS AND CREEKS IN THE 
WARNED AREA WILL REMAIN HIGH BUT WERE BEGINNING TO RECEDE...ENDING 
THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT 
TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3576 9352 3576 9369 3567 9369 3568 9398
      3569 9399 3571 9396 3573 9396 3573 9392
      3575 9389 3576 9396 3594 9395 3593 9350

$$

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 16, 7:27 PM CDTFlash Flood WarningTSAFranklin, Madison2 hr
Aug 16, 7:38 PM CDTSevere Thunderstorm WarningTSAFranklin, Madison, Washington37 min

Nearby

Flash Flood Warnings in Arkansas, 2012Every flash flood warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.